George E. Davis, Walter E. Lowell. Solar cycles and their relationship to human disease and adaptability. „Medical Hypotheses”. 67 (3), 2006. DOI: 10.1016/j.mehy.2006.03.011. PMID: 16701959.
George E. Davis, Walter E. Lowell. Solar cycles and their relationship to human disease and adaptability. „Medical Hypotheses”. 67 (3), 2006. DOI: 10.1016/j.mehy.2006.03.011. PMID: 16701959.